andlang401
andlang401 andlang401
  • 15-11-2016
  • Mathematics
contestada

How to solve 8/x^2-1=6/x+1

Respuesta :

Zygous
Zygous Zygous
  • 15-11-2016
You first need to cross multiply to get 8x+8=6x^2-6. Then make the function into 6x^2-8x-14=0 which can be simplified into 3x^2-4x-7=0 by dividing the equation by 2. Then you must split the middle(-4x) to get 3x^2+3x-7x-7=0. This simplifies to 3x(x+1)-7(x+1)=0 and then to (3x-7)(x+1)=0. From here you just solve for each root which you will find are x= -1 and 7/3
Answer Link

Otras preguntas

What caught Billy's attention? The landlady
Explain impacts of the rise of Nationalism in Europe. ​
a-x=b-cx solve for x
Read the following poem and identify the universal theme. What is the universal theme of this poem? Cite your evidence to support the universal theme.What is te
The equation below shows the relation between the temperature in degrees Celsius, C, and degrees Fahrenheit, F: F = 9/5C + 32 Which of the following formulas co
Please help me, I would appreciate it
A bush pilot wants to fly her plane to a lake that is 250.0 km [N30.0°E] from her starting point. The plane has an air speed of 210.0 km/h, and a wind is blowin
find the equation of the line shown
an accountant needs to withhold 21% of income for taxes if the income is below $40,000 and 26% of income if the income is $40,000 or more. The income amount is
Find the area of the polygon with the given vertices A(3,7), B(5,7), C(3,-7), D(5,-7)